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| author | Jens Arnold <amiconn@rockbox.org> | 2009-02-15 23:13:26 +0000 |
|---|---|---|
| committer | Jens Arnold <amiconn@rockbox.org> | 2009-02-15 23:13:26 +0000 |
| commit | d8ff94121fd855d86a10a4bb98ad426a3e119c20 (patch) | |
| tree | 19eca173173d72541385308bc9399b7ad6de300f /apps | |
| parent | 789b0a2eb9ae94a10abd590c91e3ae8588137e37 (diff) | |
| download | rockbox-d8ff94121fd855d86a10a4bb98ad426a3e119c20.zip rockbox-d8ff94121fd855d86a10a4bb98ad426a3e119c20.tar.gz rockbox-d8ff94121fd855d86a10a4bb98ad426a3e119c20.tar.bz2 rockbox-d8ff94121fd855d86a10a4bb98ad426a3e119c20.tar.xz | |
Get rid of a useless copy instruction in the SH1 32*32->64bit multiply routines (signed and unsigned).
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@20013 a1c6a512-1295-4272-9138-f99709370657
Diffstat (limited to 'apps')
| -rw-r--r-- | apps/plugins/mandelbrot.c | 19 | ||||
| -rw-r--r-- | apps/recorder/resize.h | 11 |
2 files changed, 14 insertions, 16 deletions
diff --git a/apps/plugins/mandelbrot.c b/apps/plugins/mandelbrot.c index c69d5de..c18b1f4 100644 --- a/apps/plugins/mandelbrot.c +++ b/apps/plugins/mandelbrot.c @@ -415,14 +415,13 @@ static inline long muls32_asr26(long a, long b) "addc %[t2],%[t3] \n" /* t3 += t2, carry -> t2 */ "movt %[t2] \n" "mulu %[a],%[b] \n" /* b * d */ - "mov %[t3],%[t1] \n" /* t2t3 <<= 16 */ + "mov %[t3],%[t1] \n" /* t1t3 = t2t3 << 16 */ "xtrct %[t2],%[t1] \n" - "mov %[t1],%[t2] \n" "shll16 %[t3] \n" - "sts macl,%[t1] \n" /* lo = b * d */ - "clrt \n" /* hi.lo += t2t3 */ - "addc %[t3],%[t1] \n" - "addc %[t2],%[r] \n" + "sts macl,%[t2] \n" /* lo = b * d */ + "clrt \n" /* hi.lo += t1t3 */ + "addc %[t3],%[t2] \n" + "addc %[t1],%[r] \n" "cmp/pz %[a] \n" /* ab >= 0 ? */ "bt 1f \n" "sub %[b],%[r] \n" /* no: hi -= cd (sign extension of ab is -1) */ @@ -435,10 +434,10 @@ static inline long muls32_asr26(long a, long b) "shll2 %[r] \n" /* hi <<= 6 */ "shll2 %[r] \n" "shll2 %[r] \n" - "shlr16 %[t1] \n" /* (unsigned)lo >>= 26 */ - "shlr8 %[t1] \n" - "shlr2 %[t1] \n" - "or %[t1],%[r] \n" /* combine result */ + "shlr16 %[t2] \n" /* (unsigned)lo >>= 26 */ + "shlr8 %[t2] \n" + "shlr2 %[t2] \n" + "or %[t2],%[r] \n" /* combine result */ : /* outputs */ [r] "=&r"(r), [t1]"=&r"(t1), diff --git a/apps/recorder/resize.h b/apps/recorder/resize.h index d1dabaa..4ea4eaa 100644 --- a/apps/recorder/resize.h +++ b/apps/recorder/resize.h @@ -78,14 +78,13 @@ static inline unsigned sc_mul32(unsigned a, unsigned b) "addc %[t2], %[t3] \n" /* t3 += t2, carry -> t2 */ "movt %[t2] \n" "mulu %[a], %[b] \n" /* b * d */ - "mov %[t3], %[t1] \n" /* t2t3 <<= 16 */ + "mov %[t3], %[t1] \n" /* t1t3 = t2t3 << 16 */ "xtrct %[t2], %[t1] \n" - "mov %[t1], %[t2] \n" "shll16 %[t3] \n" - "sts macl, %[t1] \n" /* lo = b * d */ - "clrt \n" /* hi.lo += t2t3 */ - "addc %[t3], %[t1] \n" - "addc %[t2], %[r] \n" + "sts macl, %[t2] \n" /* lo = b * d */ + "clrt \n" /* hi.lo += t1t3 */ + "addc %[t3], %[t2] \n" + "addc %[t1], %[r] \n" : /* outputs */ [r] "=&r"(r), [t1]"=&r"(t1), |